Jump boosting!!

[Usefull]

(DISCLAIMER: Use at own risk, it might breake the game save, read full post before use!!!)
There is a bug you can use to jump 10-20x higher or jump on top of buildings. The bug is very easy, you just have to run or be in the running animation and spam jump as fast as possible (like 10/sec) and you will be jump boosted. Works 6/10 and is a easy method to get away from cops or take short cuts.

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Issue 1:
The jump bug doesnt work 100% the time it needs some training to use it on demand.

Solution:
I prefer to use a shotkey for it where it will jump the needed times to jump boost :D
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Issue 2:
Its possible to bug out of map with it and you end up in a infinite fall under map.

Solutions:
1: You are lucky and manage to unstuck yourself quickly
2: You can reload game to last save
3: Start new game :'(

[ButchHero]

You can also find an area with a roof or overhang low enough to hit your head on when you jump, then just spam jump and all of the momentum releases when you walk out from the overhang and you'll be flung into space. I'm assuming you could do this just a few times to get the same result as jump boosting to get to rooftops lol